! as '/' or end-of-url can be matched. More specifically, '^' is equivalent to

! the regexp: [^\w\d._%-]|$

!

! This means that it can match either the end of the URL or any character that is

! not a letter, digit, dot, underscore, percent sign or dash. Here are a few

! examples of characters that are matched by '^': / (slash), = (equal),

! [ (bracket), : (colon), etc.

!

! In practice, you will usually want to use '/' (or any other specific

! separator like '=' or '?') most of the time in your patterns, except at the end

! of a pattern in cases where you want to be a little bit more generic, and

! express that your pattern should be either matching at the end of the URL or be

! followed by a separator and then arbitrary URL components.

!

! For example, |https://example.org^ will match: 'https://example.org',

! 'https://example.org/' or 'https://example.org/path'; but it will *not* match

! 'https://example.org.ac', which is also a valid domain name starting with

! 'https://example.org'.

!

! Another example, /foo.js^ will match: 'https://example.org/foo.js',

! 'https://example.org/foo.js?param=42', 'https://example.org/foo.js/' but it

! will *not* match 'https://example.org/foo.jsx' (because it is not followed by a

! separator).

!

! Also note that the maximum number of carets allowed in a given instruction is

! limited.

|https://example.org^

/foo.js^